Prevalence of isolated from oropharynx and trachea of clinically sick poultry and antimicrobial resistance pattern of the strains isolated.

The study was carried out to investigate the isolation of from tracheal and oropharyngeal swab of clinically sick chickens. The antibiotic susceptibility patterns of the isolates to several antimicrobials were determined with a striking emphasis on oxytetracycline. The PCR technique was applied to detect tetA, tetB, and tetC in the tetracycline-resistant isolates.